The phrase "doeth obeisance" may not be a term that is commonly used in everyday language, but there are many synonyms that convey the same meaning. Some synonyms that can be used in place of "doeth obeisance" include showing respect, paying homage, bowing down, submitting, worshipping, and venerating. These terms all refer to the act of displaying deep respect and reverence towards someone or something of great importance or authority. The choice of synonym may depend on the context of the situation or the tone that is desired, but all of these words convey a sense of deference and humility.